vector.h
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/*====================================================================
* vector.h
*
* Copyright 1995, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
* Inc.; the contents of this file may not be disclosed to third
* parties, copied or duplicated in any form, in whole or in part,
* without the prior written permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to
* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
* in Technical Data and Computer Software clause at DFARS
* 252.227-7013, and/or in similar or successor clauses in the FAR,
* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
* Copyright Laws of the United States.
*====================================================================*/
#ifndef __vector__
#define __vector__
#include <ultra64.h>
typedef float vec2[2];
typedef float vec3[3];
extern void crossVec3(vec3 result, vec3 v1, vec3 v2);
#define COPY_VEC3(dst,src) \
if (1) { \
(dst)[0] = (src)[0]; \
(dst)[1] = (src)[1]; \
(dst)[2] = (src)[2]; \
} else
#define NORMALIZE_VEC3(v) \
if (1) { \
float f = sqrtf((v)[0]*(v)[0] + (v)[1]*(v)[1] + (v)[2]*(v)[2]); \
(v)[0] /= f; \
(v)[1] /= f; \
(v)[2] /= f; \
} else
#define SUB_VEC3(result,v1,v2) \
if (1) { \
(result)[0] = (v1)[0] - (v2)[0]; \
(result)[1] = (v1)[1] - (v2)[1]; \
(result)[2] = (v1)[2] - (v2)[2]; \
} else
#define ADD_VEC3(result,v1,v2) \
if (1) { \
(result)[0] = (v1)[0] + (v2)[0]; \
(result)[1] = (v1)[1] + (v2)[1]; \
(result)[2] = (v1)[2] + (v2)[2]; \
} else
#endif